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Finding the Fourth Proportional to 74,617.80, 111,926.70 and 22,023.20

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Solution

The fourth proportional to 74,617.80, 111,926.70 and 22,023.20 is: 33,034.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,617.80 : 111,926.70 = 22,023.20 : x
  2. Step 2: Convert to fraction form
    74,617.80/111,926.70 = 22,023.20/x
  3. Step 3: Cross multiply
    74,617.80x = 111,926.70 × 22,023.20
  4. Step 4: Simplify right side
    74,617.80x = 2,464,984,099.44
  5. Step 5: Solve for x
    x = 2,464,984,099.44/74,617.80
  6. Step 6: Final answer
    x = 33,034.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.